Zebra Skimmers: Hardness Testing Sticks btpcat_other_357115531 Most economical disk skimmer available

Most economical disk skimmer available for coolant use

Shell Heat Transfer Oil S2 X is based on carefully selected

Houghton HOCUT 767 Synthetic Lubricant is also available in 5 Gallon Pails

Shell Rotella T1 is suitable for older on and off foad diesel vehicles and some stationary engines

ultra-clean and able to handle the toughest engine conditions

Zebra Skimmers: Hardness Testing Sticks btpcat_other_357115531 Most economical disk skimmer availableMonitor coolant chemical condition with these hardness testing sticks. Easy to use: Dip into fluid and compare your color reading to hardness (ppm) value color chart on bottle label Results in 3 seconds Range of 0 1000 ppm calcium and magnesium 50 sticks per bottle One bottle lasts a year per sump